I'm new to Ext Designer and have a question on how to dynamically create the proxy / store URL for loading data from the server.
For example, let's say I want to load a list of orders for a particular customer using a Store. The server-side URL that handles order may be "userOrders.php". One of the arguments the server expects is the customer-id, so that the server will select only the orders for a particular customer.
How would I do this in Ext Designer? How do I pass dynamic arguments to the URL field for a proxy / store?